D means that the product is rated in its category in terms of energy efficiency. The Energy Labeling system is based on EU Regulation 2017/1369/EU. D 联想 ThinkVision S27-4e, 68.6 cm (27"), 1920 x 1080 像素, Full HD, LED, 6 毫秒, 黑色 联想 ThinkVision S27-4e. 显示器尺寸（对角长）: 68.6 cm (27"), 显示器分辨率: 1920 x 1080 像素, HD 类型: Full HD, 显示技术: LED, 响应时间: 6 毫秒, 原机长宽比: 16:9, 视角，水平: 178°, 视角，垂直: 178°. VESA 安装支架. 产品色彩: 黑色